A fundraising email for The Heritage Foundation, a conservative think tank, said, "Our current president is unlike any other who came before him."

"It should come as no surprise that he doesn't act like a politician," said the letter from Ed Fuelner, Heritage Foundation president.

The letter offers a free copy of Newt Gingrich's book "Understanding Trump" as a benefit of a $100 donation.

"We know the liberals won't give up … Your gift will allow Heritage experts to continue crafting policy solutions to fix the myriad problems that the Obama administration left for our country, military, and taxpayers," according to the Heritage Foundation website.

Mediaite writer Colby Hall criticized the letter. "If you didn't know better … this email might be read as if the United States had elected that troubled kid from elementary school," Hall wrote in Mediaite.

"The Heritage Foundation is charged with trying to influence and persuade the Trump Admin," Hall wrote, and said the letter would accomplish that goal because "the recipients are those Republicans still licking wounds over a failed Jeb campaign," referring to former GOP candidate Jeb Bush.